---
title: GetDeviceAsyncEventSource
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 18.4+, macOS 10.14+]
path: iokit/iousbdeviceinterface942/2977150-getdeviceasynceventsource
---

# GetDeviceAsyncEventSource

## Declaration

```occ
CFRunLoopSourceRef (*GetDeviceAsyncEventSource)(void *self);
```